Photographic-plate holder



R. c. MAsoN. Y PHOTOGRAPHIC PLATE HOLDER.

AAPPLICATION FILED MAR. 23| 1918.I

Patented Nov. 9, 1920.

ITY

lll/11111111 n.- 11111/111/11 )j 11111.11 lll/fill 011/11//11/1/11rr1/l w. uw lo@ nM. wc n@ In, m

RALPH CHARLES MATSON,'OF PORTLAND, OREGON.

PHOTOGRAPHIC-PLATE HOLDER.

Specification of Letters Patent.

Patented. Nov. 9, 1920.

Application filed March 23, 1918. Serial No. 224.278.

1'0 all flo/tom t may concern.'

Be it known that I, RALPH C. MATsoN, a citizen of the United States, and a resident of the city of Portland, county of Multnomah, State of Oregon, have invented a certain new and useful Improvement in Photographic-Plate Holders, of which the followingris a specification.

he object of my invention is to obtain a convenient and inexpensive holder for tives and other photographic plates, and particularly to make my holder adapted for holding plates of greatly varying sizes; also to make the Whole structure of sufficient stiffness so as to prevent any breaking strain on the larger sized plate when held by my holder and the latter is being handled.

My invention further has for its object to provide the sides of the holder with laterally projectable arms by which one end of the holder-may be supported while the other .end is immersed in a sink or trough While working on a negative; and also providing one end of the frame with means for sus pending the same while drying.

The construction of my holder is fully illustrated in the accompanying drawings, in which:

Figure l is a top view;

Fig. 2 is a section of the frame on the line 2-2 of Fig. l, except that the supporting arms are arranged in their folded position.

Fig. 3 is a perspective section on the line 3*?) of Fig. l;

Fig. 4 is a sectional detail on the line 4.*4 of Fig. l;

Fig. 5 is a sectional detail on the lille of Fig. l, looking in the direction pointed by the arrow 5; and

Fig. 6 is a fragmental View of that end of the slide provided with a holding groove for receiving one side of the plate; this figure illustrates how the plate is held in place on the frame.

The frame comprises side pieces a, a, which are folded so as to provide grooves, as illustrated at a in Fig. 3. One end of the frame is connected by a transverse piece shaped to provide a plate-holding groove c. The opposite ends of the frame sides are connected by a cross-pieced, provided with aA hook e for suspending the frame. The cross-piece d may be of the frame sides.

The grooves a of the sides, a, are adapted to hold a slide f. This an integral part slide is preferably part z' between said cuts made of a single sheet of metal, cut as at L, so as to provide elongate shoe-portions y, g', bearing in said grooves a; and the is folded back upon itself. and formed with a lip j, as shown in Fig. 3, to provide a plate-holding groove j facing the plate-holding groove c of the frame. The shoe-portions g, g', are adapted to project a substantial distance beyond the body of the slide f', so as to give rigidity to the latter, and incidentally stifening the frame-sides. thereby minimizing any danger'of cracking a larger-sized plate held by my plate-holder, in the handling of the latter.

The plate is secured in place between the plate holding grooves c. j, as illustrated in Fig. 2, and as will be noted the plate holding grooves are located above the plane of the upper faces of the frame sides, and in this way my holder is adapted for holding a plate p projecting over the frame sides, as shown in Fig. 6.

In order to have means for supporting one end of my holder ina sink or trough, I provide the frame-sides, a, with foldable laterally project-able arms 7c, 7c, pivoting on pivots m. And in order to limit the movement of the arms c when extended, I provide stops n on the frame sides, and also prefer to provide the arms 7c with stud pins o, which may be snapped into cavities o therefor provided in the frame sides, as shown in Fig. 2, when the arms are to be arranged parallel with the frame sides.

ln order to facilitate the handling of the slide, I provide the same with a .fingerpie'ce Q. Y

VI claim:

1. As a photo-plate holder, a rectangular metal frame comprising sides folded to form grooves for a slide and transverse pieces connecting the ends of the sides, one of said transverse pieces being provided with a plate holding groove, a slide bearing in Said slide grooves, the slide'being made of a single sheet of metal and comprising shoes, the sheet being slitted adjacent to and parallel with said shoes, the transverseV body-piece intermediate the slits being folded back on itself, and the free edge of such body-piece being formed into a plate holding groove facing that of the frame.

2. As a photo-plate holder, a rectangular metal frame comprising sides folded to form grooves for a slide, and transverse pieces connecting the ends of the sides, one of said plate holding groove,

transverse pieces being provided With a plate-holding groove, a slide bearing in said slide grooves, the slide being made of a. single sheet of metal and comprising shoes, the sheet being slitted adjacent to and parallel With said shoes, the transverse bodypiece intermediate the slits being folded baclr on itself and the free edge of suchV body-piece being formed into a plate-holding groove facing that of the frame, and the shoes projecting a substantial distance beyond either side of the transverse bodypiece.

3. As a photo-plate holder, a rectangular metal frame comprising sides folded to form grooves for a slide and transverse pieces connecting the ends of the sides, one of said transverse pieces being provided With a plate holding groove, a slidel bearing in said slide grooves, the slide being made of a single sheet of metal and comprising shoes, the sheet being` slitted adjacent to and parallel with said shoes,.the transverse body-piece intermediate the slits being folded back on itself, and the free edge of such body-piece being formed into a plate holding groove facing that of the frame, and the plate-holding grooves lying in a plane above that of the sides.

4. As a photo-plate holder, a rectangular metal frame comprising sides stiffened by being folded upon themselves to forin a double thickness, and also formed vvith flanges spaced apart from said folds to provide grooves for a slide, and transverse pieces connecting the ends of the sides, one of said transverse pieces being provided with a a slide bearing in said slide grooves, the slide being made of a single sheet of metal and comprising shoes, the sheet being slitted adjacent to and parallel with said shoes, the transverse body-piece intermediate the slits being folded back on itself and the free edge of such body-piece being formed into a holding groove facing that of the frame, and the plate-holding grooves lying in a plane above that of the sides. 1

5. As a photo-plate holder, a rectangular metal-frame comprising sides sti'lfened by being folded upon themselves to form a double thickness, and also formed with flanges spaced apart from said folds to provide grooves for a slide, and transverse pieces connecting the ends of the sides, one of said transverse pieces being provided with a plate holding groove, a slide. bearing in said slide grooves, the slide being made of a single sheet of metal and comprising shoes, the sheet being slitted adjacent to and parallel With said slices, the transverse body-piece intermediate the slits being folded back on itself, and the free edge of such body-piece being formed into a plate holding groove facing that of the frame, the plate-holding grooves lying in a plane above that of the sides, the shoes projecting a substantial distance beyond either side of the transverse body-piece, and lateral arms on the frame sides.

6. As a photo-plate holder, a rectangular metal frame comprising sides stiffened by' being folded upon themselves to forni a double thickness, and also forined With flanges spaced apart from said folds to provide grooves for a slide, and transverse pieces connecting the ends of the sides, one of said transverse pieces being provided with a plate-holding groove, a slide bearing in said slide grooves, the slide being made of a single sheet of metal and comprising shoes, the sheet being slitted adjacent to and parallel with said shoes, the transverse'body-piece intermediate the slits being folded back on itself and the free edge of such body-piece being formed into a plate-holding groove facing that of the frame, the plate-holding grooves lying in a plane above that of the sides, the shoes projecting a substantial distance beyond either side of the transverse body-piece, a take-hold on the transverse body-piece of the slide', means on the frame for suspending the saine, and foldable lateral arms on the frame sides.

7. As a plate holder, a rectangular metal frame comprising side pieces provided with grooves for holding a slide and transverse end pieces, one of said end pieces being provided With a plate-holding groove, a slide bearing in said groove comprising shoes sliding in said slide grooves, and an intermediate transverse body-piece provided vWith a holding groove facing the plate holding groove of the frame-end., and the plate-holding grooves lying in a pla-ne above that of the sides,

8. As a plate holder, a rectangular metal frame comprising side pieces provided With grooves for -holding a slide and transverse end pieces, one of said end pieces being provided` vvith a plate-holding groove, a slide bearing in said groove comprising shoes sliding in said slide grooves, and an intermediate transverse body-piece provided With a plate holding groove facing the plate-holding groove of the frame-end," plate-holding grooves lying in a plane above' that of the sides, and laterally projectable arms on the frame sides.

RALPH CHARLES MATSON. 

